--- a/src/event/ngx_event_quic.h
+++ b/src/event/ngx_event_quic.h
@@ -1,6 +1,6 @@
 
 /*
- *
+ * Copyright (C) Nginx, Inc.
  */
 
 
@@ -10,95 +10,11 @@
 
 #include <ngx_event_openssl.h>
 
-#define quic_version 0xff000018
-
-
-typedef struct {
-    ngx_str_t          secret;
-    ngx_str_t          key;
-    ngx_str_t          iv;
-    ngx_str_t          hp;
-} ngx_quic_secret_t;
-
+/* TODO: get rid somehow of ssl argument? */
+ngx_int_t ngx_quic_input(ngx_connection_t *c, ngx_ssl_t *ssl, ngx_buf_t *b);
+ngx_int_t ngx_quic_output(ngx_connection_t *c);
 
-struct ngx_quic_connection_s {
-    ngx_str_t          scid;
-    ngx_str_t          dcid;
-    ngx_str_t          token;
-
-    ngx_quic_secret_t  client_in;
-    ngx_quic_secret_t  client_hs;
-    ngx_quic_secret_t  client_ad;
-    ngx_quic_secret_t  server_in;
-    ngx_quic_secret_t  server_hs;
-    ngx_quic_secret_t  server_ad;
-};
+void ngx_quic_init_ssl_methods(SSL_CTX* ctx);
 
 
-uint64_t ngx_quic_parse_pn(u_char **pos, ngx_int_t len, u_char *mask);
-uint64_t ngx_quic_parse_int(u_char **pos);
-void ngx_quic_build_int(u_char **pos, uint64_t value);
-
-ngx_int_t ngx_hkdf_extract(u_char *out_key, size_t *out_len,
-    const EVP_MD *digest, const u_char *secret, size_t secret_len,
-    const u_char *salt, size_t salt_len);
-ngx_int_t ngx_hkdf_expand(u_char *out_key, size_t out_len,
-    const EVP_MD *digest, const u_char *prk, size_t prk_len,
-    const u_char *info, size_t info_len);
-
-ngx_int_t ngx_quic_hkdf_expand(ngx_connection_t *c, const EVP_MD *digest,
-    ngx_str_t *out, ngx_str_t *label, const uint8_t *prk, size_t prk_len);
-
-ngx_int_t ngx_quic_tls_open(ngx_connection_t *c,
-    const EVP_CIPHER *cipher, ngx_quic_secret_t *s, ngx_str_t *out,
-    u_char *nonce, ngx_str_t *in, ngx_str_t *ad);
-ngx_int_t ngx_quic_tls_seal(ngx_connection_t *c,
-    const EVP_CIPHER *cipher, ngx_quic_secret_t *s, ngx_str_t *out,
-    u_char *nonce, ngx_str_t *in, ngx_str_t *ad);
-
-ngx_int_t
-ngx_quic_tls_hp(ngx_connection_t *c, const EVP_CIPHER *cipher,
-    ngx_quic_secret_t *s, u_char *out, u_char *in);
-
-
-#if (NGX_HAVE_NONALIGNED)
-
-#define ngx_quic_parse_uint16(p)  ntohs(*(uint16_t *) (p))
-#define ngx_quic_parse_uint32(p)  ntohl(*(uint32_t *) (p))
-
-#else
-
-#define ngx_quic_parse_uint16(p)  ((p)[0] << 8 | (p)[1])
-#define ngx_quic_parse_uint32(p)                                              \
-    ((uint32_t) (p)[0] << 24 | (p)[1] << 16 | (p)[2] << 8 | (p)[3])
-
-#endif
-
-
-#define ngx_quic_write_uint16_aligned(p, s)                                   \
-    (*(uint16_t *) (p) = htons((uint16_t) (s)), (p) + sizeof(uint16_t))
-#define ngx_quic_write_uint32_aligned(p, s)                                   \
-    (*(uint32_t *) (p) = htonl((uint32_t) (s)), (p) + sizeof(uint32_t))
-
-#if (NGX_HAVE_NONALIGNED)
-
-#define ngx_quic_write_uint16  ngx_quic_write_uint16_aligned
-#define ngx_quic_write_uint32  ngx_quic_write_uint32_aligned
-
-#else
-
-#define ngx_quic_write_uint16(p, s)                                           \
-    ((p)[0] = (u_char) ((s) >> 8),                                            \
-     (p)[1] = (u_char)  (s),                                                  \
-     (p) + sizeof(uint16_t))
-
-#define ngx_quic_write_uint32(p, s)                                           \
-    ((p)[0] = (u_char) ((s) >> 24),                                           \
-     (p)[1] = (u_char) ((s) >> 16),                                           \
-     (p)[2] = (u_char) ((s) >> 8),                                            \
-     (p)[3] = (u_char)  (s),                                                  \
-     (p) + sizeof(uint32_t))
-
-#endif
-
 #endif /* _NGX_EVENT_QUIC_H_INCLUDED_ */